Brave firemen, lifeguards and medics of the 51st Chicago Fire Department have a very hard, exciting and dangerous work from which other people try keep off. But because of a huge responsibility and important duties incumbent upon them these brave men and women, unfortunately, cannot avoid personal losses. One member of the team has a well-deserved reputation, other one is a mass of ego, the third one is a little smart aleck. In addition, there is a lot of stress situation where you have to make decision in a few seconds. All of this leads to numerous blowouts between colleagues.